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inn [45]
3 years ago
11

_____ has a longer wavelength than _____. _____ has a longer wavelength than _____. Blue ... green Green ... yellow Red ... gree

n Yellow ... red Violet ... blue
Physics
2 answers:
torisob [31]3 years ago
7 0

Answer:

Green has a longer wavelength than Blue.

Yellow has a longer wavelength than Green.

Red has a longer wavelength than Green.

Red has a longer wavelength than Yellow.

Blue has a longer wavelength than Violet.

Explanation:

The full spectrum:

R - O - Y - G - B - I - V

From left to right of the visible spectrum, their wavelengths decrease.

As the full spectrum of visible light travels through a prism, the wavelengths separate into the colors of the rainbow because each color is a different wavelength. Violet has the shortest wavelength, at around 380 nanometers, and red has the longest wavelength, at around 700 nanometers.

nadya68 [22]3 years ago
3 0

Answer:

red has a longer wavelength than yellow. Yellow has a longer wavelength than green.

Explanation

in the visible spectrum a color with high frequency  contains shorter wavelength.In this case red color has high wavelength followed by yellow followed by green,blue and violet.

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A student is holding a stone at a certain height. The stone has 50 joules of potential energy and 0 joules of kinetic energy. Th
Hitman42 [59]

Answer:

d) The stone will have about 50 joules of kinetic energy and 0 joules of potential energy​ .

Explanation:

Given :

Initial Potential energy , P_i=50\ J .

Initial Kinetic energy , K_i=0\ J . ( because ball is in rest )

Now , we know , kinetic energy is maximum when an object reaches ground .

Also , potential energy is zero when an object is in ground .

We know , by conservation of energy :

Initial total energy = Final total energy

P_i+K_i=P_f+K_f\\\\50+0=0+K_f\\\\K_f=50 \ J

Therefore , option d) is correct .

6 0
3 years ago
Ivan pushes a dresser with full drawers across his carpeted floor. What could Ivan do to reduce the amount of friction between t
aniked [119]

Answer:

Place some smooth tiles under the dresser

Smooth surfaces, like smooth tile, are easy to slide over. They create very little friction. Rough surfaces like carpet create much more friction.

remove the drawers from the dresser

Weight affects friction in that friction is directly proportional to the weight of the load one is moving. So reduce the weight, reduce the friction.

Explanation:

Speed does not impact friction, so moving the dresser slower won't help. Wind has nothing to do with the scenario, so that's not a correct option.

7 0
2 years ago
Read 2 more answers
Is the force of gravity stronger on a piece of paper when it is crumpled? is the force of gravity stronger on a piece of iron th
Kipish [7]

No, gravity pulls every object with the same force irrespective of its shape, size place etc.

Therefore the force of gravity on the iron and wooden piece of same mass is same. Also the force of gravity is same on the crumpled piece of paper as that of plain paper.

Force of gravity is always same.

5 0
3 years ago
A certain gasoline engine has an efficiency of 35.3%. What would the hot reservoir temperature be for a Carnot engine having tha
levacccp [35]

Answer:

The temperature of hot reservoir is 669.24 K.

Explanation:

It is given that,

Efficiency of gasoline engine, \eta=35.3\%=0.353

Temperature of cold reservoir, T_C=160^{\circ}C=433\ K

We need to find the temperature of hot reservoir. The efficiency of Carnot engine is given by :

\eta=1-\dfrac{T_C}{T_H}

T_H=\dfrac{T_C}{1-\eta}

T_H=\dfrac{433}{1-0.353}

T_H=669.24\ K

So, the temperature of hot reservoir is 669.24 K. Hence, this is the required solution.

4 0
3 years ago
Calculate the acceleration of a car that can go from rest to 100 km/h in 10 seconds
Basile [38]

Answer: 2.77 m/s^{2}

Explanation:

Acceleration a is defined as the variation of velocity \Delta V with time \Delta t:

a=\frac{\Delta V}{\Delta t}

Where:

\Delta V=100km/h-0km/h=100km/h=27.77m/s

\Delta t=10 s

a=\frac{27.77m/s}{10 s}

Finally:

a=2.77m/s^{2}

8 0
3 years ago
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